Potacocawa Watershed Structure Y-31a-07 Dam Reservoir Report
Last Updated: December 5, 2025
The Potacocawa Watershed Structure Y-31a-07 Dam, also known as Hutchinson Dam, is a crucial flood risk reduction structure located in Carroll, Mississippi.
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Summary
Constructed in 1965 by the USDA NRCS, this earth dam stands at a height of 32 feet and has a storage capacity of 1717 acre-feet. Situated on Grays Creek, this dam plays a vital role in protecting the surrounding area from potential flooding events.
Managed by the local government and regulated by the Mississippi Department of Environmental Quality, the Potacocawa Watershed Structure Y-31a-07 Dam is classified as having low hazard potential with a moderate risk assessment rating. Even though its condition has not been rated, the dam continues to serve its primary purpose effectively. With its uncontrolled spillway and outlet gates, this structure ensures the safety and security of the community in the event of heavy rainfall or flooding. Despite not having undergone recent inspections or maintenance, the dam remains a key component of the region's water resource management infrastructure.
Year Completed |
1965 |
Dam Height |
32 |
River Or Stream |
GRAYS CREEK |
Primary Dam Type |
Earth |
Surface Area |
422 |
Drainage Area |
4.83 |
Nid Storage |
1717 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Yalobusha River At Grenada
|
3080cfs |
Batupan Bogue At Grenada
|
134cfs |
Tallahatchie River At Money
|
6080cfs |
Abiaca Creek At Cruger
|
44cfs |
Big Black River At West
|
223cfs |
Big Sunflower River At Sunflower
|
1370cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Potacocawa Watershed Structure Y-31a-07 Dam